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Impacts of Lower Thermospheric Atomic Oxygen and Dynamics on Thermospheric Semiannual Oscillation using GITM and WACCM-X

Creator:

Malhotra, Garima and Ridley, Aaron

Description:

This research aims to understand the influence of lower thermospheric atomic oxygen ([O]) and dynamics on the thermospheric Semi Annual Oscillation (SAO). [O] number densities between 95-100 km from WACCM-X are much closer to the observations from SABER instrument on TIMED satellite as compared to those from MSIS. We compare the phase and amplitude of SAO from different simulations with empirical models and observational datasets, and explore different mechanisms that can improve the SAO in IT models.

Keyword:

Semi Annual Oscillation, SAO, T-I SAO, Thermospheric Dynamics, Thermospheric Semi Annual Oscillation, WACCM-X coupling with GITM, Global Ionosphere Thermosphere Model, WACCM-X, Whole Atmosphere Model, Vertical coupling, Meridional Circulation, Annual Oscillation, Thermospheric Intra-Annual Variations, and Semiannual Oscillation

Citation to related publication:

Malhotra, G., Ridley, A., Jones, M., (2021) Impacts of Lower Thermospheric Atomic Oxygen and Dynamics on Thermospheric Semiannual Oscillation using GITM and WACCM-X, Journal of Geophysical Research: Space Physics

Discipline:

Science